we have 2 cats,a domestic (male) and a Maine Coon (female). both have been neutered, both are 3 years old. all of a sudden, the Maine Coon is hissing at the other one, then she runs and hides for the rest of the day. She'll come out at night (in our bed) but is "on guard", watching through the doorway for the other cat. The domestic seems to miss his playmate, and will sit near her hiding place, until he gets hissed at. Sometimes he will hiss back, but not always.Before this started, he would occasionally bite her on the back of the neck. I've been told this is a mating ritual. we don't know what caused this, or what to do about it. I used to come home from work and find them sleeping in the recliner together. Not anymore. how do we stop the hissing and get them to be friends again? this has been going on now for about 1 week.
Thank you for your help! Things are slowly improving, as you said they would. They have both recently been to the vet for check-up and teeth cleaning, etc., so this makes perfect sense. Thank you again, I feel much better about it now.